作者对2例 multiple system atrophy(MSA)征进行研究,1例曾被诊断为 shy—drager 征(SDS),另1例曾被诊断为 olivo-ponto cere-bellar atrophy(OPCA),经用纤维喉镜在自然状态及药物性睡眠中对喉进行动态观察,才发现其鼾音缘于声带振动,从而确定为 MSA 征。例1男47岁,检查时发现腭扁桃体陷窝型,悬雍垂略粗、咽弓正常,双侧声带呈红肿状,两倍于正常声带,吸气时双披裂外展欠佳,声门裂狭窄。鼾音频率为300～400Hz。在药物睡眠 The authors studied two cases of multiple system atrophy (MSA), one of whom had been diagnosed with shy-drager syndrome (SDS) and the other one who had been diagnosed with olivo-ponto cerebellar atrophy (OPCA) Mirror in the natural state and drug sleep during the dynamic observation of the larynx, only to find its snoring due to vocal cord vibration, which identified as MSA sign. Example 1 Male 47 years old, examination found that the palate tonsil lacuna type, uvula a little rough, normal pharyngeal arch, bilateral vocal cord was red and swollen, twice the normal vocal cords, inspiratory double flaw outreach poor, glottis Crack narrow. Snoring sound frequency is 300 ~ 400Hz. Sleep in medicine